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Minor earthquake, 3.12 mag was detected near San Juan in Puerto Rico


Earthquake location 18.98S, -66.079666666667WA minor earthquake with magnitude 3.12 (ml/mb) was detected on Saturday, 56 kilometers (35 miles) from San Juan in Puerto Rico. The temblor was picked up at 06:00:19 / 6:00 am (local time epicenter). The earthquake was roughly at a depth of 8.07 km (5 miles). Exact time and date of event in UTC/GMT: 13/09/25 / 2025-09-13 06:00:19 / September 13, 2025 @ 6:00 am. Exact location of event, depth 8.07 km, -66.079666666667° West, 18.98° North. Unique identifier: pr71495543. Ids that are associated to the event: pr71495543.

Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Aguas Buenas, Luquillo, Naranjito. Epicenter of the event was 57 km (36 miles) from San Juan (c. 418 100 pop), 65 km (40 miles) from Bayamón (c. 203 500 pop), 68 km (42 miles) from Carolina (c. 170 400 pop), 69 km (43 miles) from Guaynabo (c. 81 400 pop), 70 km (43 miles) from Trujillo Alto (c. 54 200 pop).

Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days nine, in the past 30 days twenty-three and in the last 365 days four hundred and eighteen earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 130,000 minor quakes in the world each year.

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 56 km N of San Juan, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.12 mb The magnitude for the event.
Longitude -66.079666666667° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.98° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.07 km Depth of the event in kilometers.
Place 56 km N of San Juan, Puerto Rico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-09-13 06:00:19 Time when the event occurred. UTC/GMT
Updated 2025-09-13 06:17:22 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 150 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pr The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pr, A comma-separated list of network contributors.
Number of Stations Used 14 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.6572 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.37 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 279 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type md The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pr71495543 Id of event.
Event Code 71495543 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr71495543, A comma-separated list of event ids that are associated to an event.

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